With Barratt Developments, Bellway Homes, Inland Homes and URS the latest companies to sign up, other interested parties are being urged by the Department for Communities and Local Government (DCLG) and and the cross-government Land Disposal Group to confirm their attendance.

Attendees will be able to meet estates teams from the Ministry of Justice, the Department of Health, Department for Environment, Food and Rural Affairs, plus other departments and agencies to discuss opportunity sites throughout the country.

The event takes place on 22 November at HM Treasury in Whitehall, and will involve a series of "speed dating" style meetings between public and private sector participants.

They will form connections, discover opportunities for investment and partnership, and help the government towards its target of building 100,000 homes on public land by March 2015.

Keynote presentations will be made by:

Eric Pickles, secretary of state for communities and local government;

Brendon Walsh, director of regeneration, economic development and environment at London Borough of Hounslow.

Consultants Capita, GVA and Peter Brett Associates will be on hand throughout the day to provide advice and guidance to support the discussions.

Clare said: "The benefits of the Sitematch process are clear. It brings together public sector land owners with private sector developers to discuss potential opportunities. And in doing so goes to the heart of one of the major barriers to more homes: identifying suitable land for development an understanding its potential."

The Sitematch concept was launched in 2011 by 3Fox International, working with London Borough of Ealing and the Mayor of London.

3Fox managing director Toby Fox said: "We’re happy to be helping making a contribution, however modest, to such an important government objective. The Sitematch project started off focused on London but the involvement of government departments makes it a truly national event now. The event format has been strongly welcomed by the private and public sectors alike, so further Sitematch initiatives are in development."